工具类：动态设置日志级别

epmet-commons/epmet-commons-tools/src/main/java/com/epmet/commons/tools/log/controller/LogbackController.java

@@ -0,0 +1,49 @@
+package com.epmet.commons.tools.log.controller;
+
+import ch.qos.logback.classic.LoggerContext;
+import ch.qos.logback.classic.Logger;
+import ch.qos.logback.classic.Level;
+import org.slf4j.LoggerFactory;
+import org.springframework.web.bind.annotation.GetMapping;
+import org.springframework.web.bind.annotation.RequestMapping;
+import org.springframework.web.bind.annotation.RequestParam;
+import org.springframework.web.bind.annotation.RestController;
+
+/**
+ * logback日志级别动态切换
+ * 请求路径 .../log/setlevel
+ * 根据参数(level、packageName)，设置某一个包或者具体的某一个类的日志打印级别
+ * @Auther: zhangyong
+ * @Date: 2020-07-03 11:09
+ */
+
+@RequestMapping("/log")
+@RestController
+public class LogbackController {
+    private org.slf4j.Logger log = LoggerFactory.getLogger(LogbackController.class);
+
+    /**
+     * logback动态修改包名的日志级别
+     * @param level 日志级别
+     * @param packageName 包名
+     * @return 当前的日志级别
+     * @throws Exception
+     */
+    @GetMapping("/setlevel")
+    public String updateLogbackLevel( @RequestParam(value="level") String level,
+                                      @RequestParam(value="packageName",defaultValue = "-1") String packageName) throws Exception {
+        LoggerContext loggerContext =(LoggerContext) LoggerFactory.getILoggerFactory();
+        log.info("动态修改日志级别入参, 日志级别level：", level);
+        log.info("动态修改日志级别入参, 包名packageName：", packageName);
+        Logger logger= null;
+        if("-1".equals(packageName)) {
+            // 默认值-1，更改全局日志级别；否则按传递的包名或类名修改日志级别。
+            logger=  loggerContext.getLogger("root");
+        } else {
+            logger= loggerContext.getLogger(packageName);
+        }
+        logger.setLevel(Level.toLevel(level));
+        log.info("动态修改日志级别, 修改后, 当前的日志级别", String.valueOf(logger.getLevel()));
+        return String.valueOf(logger.getLevel());
+    }
+}